I see some people are REALLY crushing it out there. Good job!
I never got over 20 myself and I see people in the 40+ and 50+ sprees now. BOOM!
BUT I also saw some sad faces when someone broke their best spree and didn't see it in represented in the in-game leaderboard. So I have to address this:
Your score is pushed to the leaderboard every 2.5 minutes due to Steamworks leaderboard limitations.
I also save ONE LAST push to when the application is exited, pushing the current best spree to the leaderboard again, just so no score is missed.
But in essence, just wait max 2.5 min, and your score should update.
I'll fix this during the demo week. Possibly by removing the "live leaderboard" since it doesn't really fill any purpose when unlimited leaderboard updates are not allowed from Steamworks/Steam.